Google unveiled a new prototype Android smartphone that uses 3D vision to learn and map the world around it. It's codenamed "Project Tango", and according to Google, the "phone will learn the dimension of rooms and spaces just by being moved around inside of them - walking around your bedroom, for example, would help the phone learn the shape of your home." Continue reading for a video and more information.

The Verge reports that "Google has 200 devices that it's preparing to give out to developers who want to build mapping tools, games, and new algorithms that take advantage of the phone's sensors, and it expects to send them all out by March 14th."